In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

This science fair project idea demonstrates that plants give off water.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.